This was a single‐arm, open‐label, multicenter clinical trial design evaluating relma‐cel in adult (≥18 years) patients with CD19+ r/r LBCL....Patients who achieved any response had lower baseline levels of serum TNF‐α and responding patients also had lower peak concentrations for TNF‐α and IFN‐γ (p < 0.01; Figure 4C).